.topMenu {
  height: 2rem;
  background-color: #F7F7F7;
  position: relative;
  text-align: center;
  color: #fff;
  background-color: #3d8cf8;
}
.topMenu .goBack {
  position: absolute;
  top: 0;
  left: 10px;
  height: 100%;
  width: 60px;
  line-height: 2rem;
}
.topMenu .goBack span {
  display: block;
  height: 40px;
  width: 22px;
  font-size: 1rem;
  color: #fff;
}
.topMenu .navInfo {
  width: 100px;
  display: inline-block;
  position: relative;
  z-index: 2;
  height: 2rem;
  line-height: 2rem;
}
.topMenu .navInfo:after {
  content: '';
  position: absolute;
  right: 0;
  top: 0.9rem;
  display: block;
  width: 0;
  height: 0;
  border: 5px solid #ffffff;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-bottom: 5px solid transparent;
}
.dateMenu {
  display: none;
  background-color: #eee;
  width: 100px;
  margin: 0 auto;
  position: relative;
  top: 0;
  z-index: 9;
  border-radius: 5px;
}
.dateMenu:after {
  content: '';
  position: absolute;
  z-index: 9;
  left: 50%;
  margin-left: -10px;
  top: -20px;
  display: block;
  width: 0;
  height: 0;
  border: 8px solid #eee;
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-top: 12px solid transparent;
}
.dateMenu li {
  height: 36px;
  line-height: 36px;
  color: #3d8cf8;
  border-bottom: 1px solid rgba(255, 255, 255, 0.863);
}
.mainList ul {
  padding-left: 50px;
}
.mainList ul li {
  height: 3rem;
  line-height: 1.5rem;
  border-bottom: 1px solid #eee;
  position: relative;
}
.mainList ul li:before {
  content: '';
  position: absolute;
  display: block;
  height: 8px;
  width: 8px;
  left: -30px;
  top: 1.1rem;
  border-radius: 50%;
  background-color: #3d8cf8;
}
.mainList ul li .doThingsTime {
  color: #999;
  font-size: 12px;
}
.mainList ul li .L-name {
  padding-right: 20px;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.mainList ul h3 {
  margin-top: 20px;
  color: #999;
}
.mainList.on {
  height: 80vh;
  width: 100vw;
  background: url('../image/view2.jpg') center center no-repeat;
  background-size: 70%;
}
